The article presents proposals for the design and solution of a digital twin of a specialist off-road vehicle, intended for people with special needs. Unlike typical road vehicles, off-road vehicles move in an environment in which vehicle-road interactions are different, much more dynamic and variable along the entire length of the displacement. These characteristics are especially important in the context of users with special needs, who may require special supplies and protection, according to individual needs. The safety of off-road vehicle operation is at the forefront here. On the other hand, traffic on the mountain trail is slow and generally sparse. The proposed solution of a digital twin of a specialist off-road vehicle, presented in this article, addresses this challenge. In the article, we discuss a vehicle-road interaction model and other characteristics using data from a set of appropriate sensors analyzing the vehicle's movement on a specific route in real time. This approach allows, based on the data obtained from the digital twin, the optimization of vehicle design solutions and the traffic control system. It also allows the design of solutions for devices supporting safe and reliable operation of an off-road vehicle for people with special needs.